Chemical Properties of SUDAN II

InChI

InChI=1S/C18H16N2O/c1-12-7-9-16(13(2)11-12)19-20-18-15-6-4-3-5-14(15)8-10-17(18)21/h3-11,21H,1-2H3

InChI Key

JBTHDAVBDKKSRW-UHFFFAOYSA-N

Formula

C18H16N2O

SMILES

Cc1ccc(N=Nc2c(O)ccc3ccccc23)c(C)c1

Molecular Weight¹

276.34

Other Names

• 1-((2,4-Dimethylphenyl)azo)-2-naphthalenol
• 1-(2,4-Dimethylphenylazo)-2-naphthol
• 1-(2,4-Xylylazo)-2-naphthol
• 1-(o-Xylylazo)-2-naphthol
• 1-Xylylazo-2-naphthol
• 1-[(2,4-Dimethylphenyl)diazenyl]-2-naphthol
• 2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]-
• 2-Naphthalenol, 1-[2-(2,4-dimethylphenyl)diazenyl]-
• 2-Naphthol, 1-(2,4-xylylazo)-
• A.F. Red No. 5
• AF Red No. 5
• Aizen Food Red No. 5
• Brasilazina Oil Scarlet 6G
• Brilliant oil scarlet B
• C.I. 12140
• C.I. Solvent Orange 7
• Calco Oil Scarlet BL
• Calco oil scarlet ZBL
• Ceres Orange RR
• Ceres oranges RR
• Cerisol Scarlet G
• Cerotinscharlach G
• Ext D and C Red No. 14
• Ext. D and C Red No. 14
• Ext. D and C. Red. No. 14
• Extract D & C Red No. 14
• FD And C red No. 32
• Fast Oil Orange II
• Fat Red (Yellowish)
• Fat Scarlet 2G
• Fettorange B
• Grasan Orange 3R
• Japan Red 5
• Japan Red 505
• Japan Red No.5
• Lacquer Orange VR
• Motirot G
• Oil Orange 2R
• Oil Orange KB
• Oil Orange N Extra
• Oil Orange R
• Oil Orange X
• Oil Orange XO
• Oil Red Gro
• Oil Red RO
• Oil Red XO
• Oil Scarlet
• Oil Scarlet 371
• Oil Scarlet 6G
• Oil Scarlet BL
• Oil Scarlet YS
• Oil scarlet APYO
• Oil scarlet L
• Oil scarlet Y
• Orange Insoluble RR
• Orange Oil KB
• Oranz rozpoustedlova 7
• Ponceau insoluble olg
• Pyronalrot R
• Red 505
• Red B
• Red No. 5
• Resin Scarlet 2R
• Resoform Orange R
• Rot B
• Rot GG fettloeslich
• Solvent Orange 7
• Somalia Orange 2R
• Somalia Orange A 2R
• Soudan II
• Sudan 2
• Sudan Orange RPA
• Sudan Orange RRA
• Sudan Red
• Sudan X
• Sudan ax
• Sudan orange
• Sudan scarlet 6G
• Waxakol vermilion L

• ω : Acentric Factor.
• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.8234		Relay (1.0) Calculated Property
ΔcH°solid	[-9576.80; -9395.00]	kJ/mol
ΔcH°solid	-9395.00 ± 20.00	kJ/mol	NIST
ΔcH°solid	-9576.80	kJ/mol	NIST
ΔfH°gas	245.65	kJ/mol	Relay (1.0) Calculated Property
ΔfH°solid	[25.00; 207.00]	kJ/mol
ΔfH°solid	25.00 ± 20.00	kJ/mol	NIST
ΔfH°solid	207.00	kJ/mol	NIST
ΔvapH°	105.38	kJ/mol	Relay (1.0) Calculated Property
IE	7.46	eV	Relay (1.0) Calculated Property
log10WS	-4.55		Relay (1.0) Calculated Property
logPoct/wat	5.578		Crippen Calculated Property
McVol	219.030	ml/mol	McGowan Calculated Property
Pc	2071.76	kPa	Joback Calculated Property
Tboil	670.64	K	Relay (1.0) Calculated Property
Tc	1013.40	K	Relay (1.0) Calculated Property
Tfus	439.15	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Vc	0.788	m3/kmol	Relay (1.0) Calculated Property

Cheméo can also estimate Standard Gibbs free energy of formation for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Similar Compounds

Find more compounds similar to SUDAN II.

Sources

• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
Compiled This icon marks a compiled value or equation: taken from a data compilation such as ChemSep, not from an original measurement report.
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